Title:
チャート生成方法、解像度測定方法、解像度測定システム、およびプログラム
Document Type and Number:
Japanese Patent JP7304641
Kind Code:
B2
Abstract:
Provided is a method for measuring the resolution of a camera having distortion in the photography field of view thereof. A resolution measurement method, that is performed by a computer device, for a camera comprising: generating a distortion map which represents correspondence relation between coordinates of all pixels of a first test chart and coordinates of all pixels of the first test chart in an image captured by a camera which causes distortion in a photography field of view; generating, according to the correspondence relation represented by the distortion map, a distorted test chart which is a distorted image of a second test chart that is used for measuring resolution at a specific area in the first test chart in the captured image; and performing, by using the distorted test chart, measurement of resolution according to a contrast method at a part, that corresponds to the specific area, in the photography field of view of the camera.
Inventors:
Koichi Toda
Application Number:
JP2021014283A
Publication Date:
July 07, 2023
Filing Date:
February 01, 2021
Export Citation:
Assignee:
Leader Electronics Co., Ltd.
International Classes:
G01M11/02; G03B17/02
Domestic Patent References:
| JP11142292A | ||||
| JP2010281626A | ||||
| JP6539812B1 |
Foreign References:
| EP3715819A1 | ||||
| WO2018034181A1 | ||||
| US20200041377 | ||||
| CN108931357A | ||||
| WO2020178061A1 |
Attorney, Agent or Firm:
Osamu Yamamoto
Toru Miyamae
Junichi Matsuo
Yoko Fujiki
Toru Miyamae
Junichi Matsuo
Yoko Fujiki
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